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Coding–Decoding - Letter, Number, Substitution, Mixed Coding, Decoding Messages - MCQ Questions with Answers for Competitive Exams 2025

Practice important Coding–Decoding questions for competitive exams like UPSC, SSC CGL, SSC CHSL, Banking (IBPS PO, IBPS Clerk, SBI), Railway (RRB NTPC, Group D), and State PSC. Each question includes detailed explanations in Hindi & English to help you understand the concepts thoroughly. Click "View Answer" to see the correct option and explanation.

1. यदि ‘SUGAR’ को ‘VXCDU’ लिखा गया है, तो ‘SALT’ को कैसे लिखा जाएगा? / If ‘SUGAR’ is written as ‘VXCDU’, how will ‘SALT’ be written?

2. यदि ‘BLACK’ को ‘CMPDL’ लिखा गया है, तो ‘WHITE’ को कैसे लिखा जाएगा? / If ‘BLACK’ is written as ‘CMPDL’, how will ‘WHITE’ be written?

3. यदि ‘TABLE’ = 62 और ‘CHAIR’ = 45, तो ‘BOARD’ का मान क्या होगा? / If ‘TABLE’ = 62 and ‘CHAIR’ = 45, what is the value of ‘BOARD’?

4. यदि ‘MOTHER’ को ‘PQWKLW’ के रूप में कोड किया गया है, तो ‘FATHER’ को कैसे कोड किया जाएगा? / If ‘MOTHER’ is coded as ‘PQWKLW’, how will ‘FATHER’ be coded?

5. यदि ‘CAT’ = 24, ‘DOG’ = 26, तो ‘RAT’ = ? / If ‘CAT’ = 24, ‘DOG’ = 26, then ‘RAT’ = ?

6. यदि ‘MIRROR’ को ‘NKSSPS’ लिखा गया है, तो ‘WINDOW’ को कैसे लिखा जाएगा? / If ‘MIRROR’ is written as ‘NKSSPS’, how will ‘WINDOW’ be written?

7. यदि ‘FLOWER’ को ‘GMPXFS’ लिखा गया है, तो ‘GARDEN’ को कैसे लिखा जाएगा? / If ‘FLOWER’ is written as ‘GMPXFS’, how will ‘GARDEN’ be written?

8. यदि ‘COLD’ को ‘DPME’ के रूप में कोड किया गया है, तो ‘HEAT’ का कोड क्या होगा? / If ‘COLD’ is coded as ‘DPME’, what will be the code for ‘HEAT’?

9. यदि ‘HOUSE’ = ‘ISVTF’, तो ‘BRICK’ का कोड क्या होगा? / If ‘HOUSE’ = ‘ISVTF’, what will be the code for ‘BRICK’?

10. If ROAD = SPBE, then RAIL = ? / यदि ROAD = SPBE, तो RAIL = ?

11. In a code language, PAPER is written as QBQFS. What is the code for BOOK? / कोड भाषा में PAPER को QBQFS लिखा जाता है, तो BOOK का कोड क्या होगा?

12. If TRAIN is written as USBJO, then PLANE = ? / यदि TRAIN को USBJO लिखा जाता है, तो PLANE = ?

13. In a certain code, LIGHT = MJHIU. What will be the code for BULB? / यदि किसी कोड में LIGHT = MJHIU, तो BULB का कोड क्या होगा?

14. If FRIEND is written as GSJFME, then ENEMY = ? / यदि FRIEND को GSJFME लिखा जाता है, तो ENEMY = ?

15. In a coded form, TEA is UFB. What is COFFEE? / कोड रूप में TEA = UFB, तो COFFEE क्या होगा?

16. If KING = LJOH, then QUEEN = ? / यदि KING = LJOH, तो QUEEN = ?

17. If HARD = IBSE, then SOFT = ? / यदि HARD = IBSE, तो SOFT = ?

18. If CAT = DBU, what will DOG = ? / यदि CAT = DBU, तो DOG = ?

19. In a code language, EARTH = FBSUI, then WORLD = ? / यदि EARTH = FBSUI, तो WORLD = ?

20. If BRAIN = CSBJO, then MIND = ? / यदि BRAIN = CSBJO, तो MIND = ?

21. If DOOR is coded as EPPQ, then WALL = ? / यदि DOOR को EPPQ लिखा जाता है, तो WALL = ?

22. If NOTE = OPUF, then SONG = ? / यदि NOTE = OPUF, तो SONG = ?

23. In a code, HOUSE = IPVTF. How is ROOM coded? / यदि HOUSE = IPVTF, तो ROOM को कैसे लिखा जाएगा?

24. If SCHOOL = TIDPMM, then COLLEGE = ? / यदि SCHOOL = TIDPMM, तो COLLEGE = ?

25. If FILE = GJMF, then DATA = ? / यदि FILE = GJMF, तो DATA = ?

26. If CUP = DVQ, then TEA = ? / यदि CUP = DVQ, तो TEA = ?

27. If DISH = EJTI, then RICE = ? / यदि DISH = EJTI, तो RICE = ?

28. If HELLO = IFMMP, then WORLD = ? / यदि HELLO = IFMMP, तो WORLD = ?

29. In a code, BAT = CBU, then RAT = ? / यदि BAT = CBU, तो RAT = ?

30. If LOOK = MPPL, then BOOK = ? / यदि LOOK = MPPL, तो BOOK = ?

31. If RAIN = QZHM, then WATER = ? / यदि RAIN = QZHM, तो WATER = ?

32. If PINE = RKPJ, then TREE = ? / यदि PINE = RKPJ, तो TREE = ?

33. If SMART = RNZQS, then BRAIN = ? / यदि SMART = RNZQS, तो BRAIN = ?

34. If CODE = XLMW, then DATA = ? / यदि CODE = XLMW, तो DATA = ?

35. In a code, MIND = NJME, then SOUL = ? / यदि MIND = NJME, तो SOUL = ?

36. If WATER is coded as XBUSF, then JUG = ? / यदि WATER = XBUSF, तो JUG = ?

37. If BLACK = YIZXP, then WHITE = ? / यदि BLACK = YIZXP, तो WHITE = ?

38. If BIRD = YRIW, then FISH = ? / यदि BIRD = YRIW, तो FISH = ?

39. If TABLE = GYOVB, how is CHAIR written? / यदि TABLE = GYOVB, तो CHAIR को कैसे लिखा जाएगा?

40. If VAN = EZM, then CAR = ? / यदि VAN = EZM, तो CAR = ?

41. If HELLO = JGNNQ, then GOOD = ? / यदि HELLO = JGNNQ, तो GOOD = ?

42. In some code, LOVE = MPWF, how is HATE coded? / किसी कोड में LOVE = MPWF, तो HATE को कैसे लिखा जाएगा?

43. If EAR = HZG, then TEAR = ? / यदि EAR = HZG, तो TEAR = ?

44. If WORD = DLIW, then KING = ? / यदि WORD = DLIW, तो KING = ?

45. If LION = OKRP, then TIGER = ? / यदि LION = OKRP, तो TIGER = ?

46. If OWL = LDP, then CROW = ? / यदि OWL = LDP, तो CROW = ?

47. If NEPAL = ODMZM, then INDIA = ? / यदि NEPAL = ODMZM, तो INDIA = ?

48. In a code, KITE = MTVG, then BIRD = ? / यदि KITE = MTVG, तो BIRD = ?

49. If FAST = GCUV, then SLOW = ? / यदि FAST = GCUV, तो SLOW = ?

50. ‘FISH’=‘27’, ‘BIRD’=‘29’, find ‘ANIMAL’. / ‘FISH’=‘27’, ‘BIRD’=‘29’, ‘ANIMAL’ ज्ञात करें।

Important General Knowledge Questions | Coding–Decoding GK in Hindi

Coding–Decoding - Letter, Number, Substitution, Mixed Coding, Decoding Messages - MCQ Questions with Answers for Competitive Exams 2025

1. यदि ‘SUGAR’ को ‘VXCDU’ लिखा गया है, तो ‘SALT’ को कैसे लिखा जाएगा? / If ‘SUGAR’ is written as ‘VXCDU’, how will ‘SALT’ be written?

2. यदि ‘BLACK’ को ‘CMPDL’ लिखा गया है, तो ‘WHITE’ को कैसे लिखा जाएगा? / If ‘BLACK’ is written as ‘CMPDL’, how will ‘WHITE’ be written?

3. यदि ‘TABLE’ = 62 और ‘CHAIR’ = 45, तो ‘BOARD’ का मान क्या होगा? / If ‘TABLE’ = 62 and ‘CHAIR’ = 45, what is the value of ‘BOARD’?

4. यदि ‘MOTHER’ को ‘PQWKLW’ के रूप में कोड किया गया है, तो ‘FATHER’ को कैसे कोड किया जाएगा? / If ‘MOTHER’ is coded as ‘PQWKLW’, how will ‘FATHER’ be coded?

5. यदि ‘CAT’ = 24, ‘DOG’ = 26, तो ‘RAT’ = ? / If ‘CAT’ = 24, ‘DOG’ = 26, then ‘RAT’ = ?

6. यदि ‘MIRROR’ को ‘NKSSPS’ लिखा गया है, तो ‘WINDOW’ को कैसे लिखा जाएगा? / If ‘MIRROR’ is written as ‘NKSSPS’, how will ‘WINDOW’ be written?

7. यदि ‘FLOWER’ को ‘GMPXFS’ लिखा गया है, तो ‘GARDEN’ को कैसे लिखा जाएगा? / If ‘FLOWER’ is written as ‘GMPXFS’, how will ‘GARDEN’ be written?

8. यदि ‘COLD’ को ‘DPME’ के रूप में कोड किया गया है, तो ‘HEAT’ का कोड क्या होगा? / If ‘COLD’ is coded as ‘DPME’, what will be the code for ‘HEAT’?

9. यदि ‘HOUSE’ = ‘ISVTF’, तो ‘BRICK’ का कोड क्या होगा? / If ‘HOUSE’ = ‘ISVTF’, what will be the code for ‘BRICK’?

10. If ROAD﻿ = SPBE﻿, then RAIL﻿ = ? / यदि ROAD﻿ = SPBE﻿, तो RAIL﻿ = ?

11. In a code language, PAPER﻿ is written as QBQFS﻿. What is the code for BOOK﻿? / कोड भाषा में PAPER﻿ को QBQFS﻿ लिखा जाता है, तो BOOK﻿ का कोड क्या होगा?

12. If TRAIN﻿ is written as USBJO﻿, then PLANE﻿ = ? / यदि TRAIN﻿ को USBJO﻿ लिखा जाता है, तो PLANE﻿ = ?

13. In a certain code, LIGHT﻿ = MJHIU﻿. What will be the code for BULB﻿? / यदि किसी कोड में LIGHT﻿ = MJHIU﻿, तो BULB﻿ का कोड क्या होगा?

14. If FRIEND﻿ is written as GSJFME﻿, then ENEMY﻿ = ? / यदि FRIEND﻿ को GSJFME﻿ लिखा जाता है, तो ENEMY﻿ = ?

15. In a coded form, TEA﻿ is UFB﻿. What is COFFEE﻿? / कोड रूप में TEA﻿ = UFB﻿, तो COFFEE﻿ क्या होगा?

16. If KING﻿ = LJOH﻿, then QUEEN﻿ = ? / यदि KING﻿ = LJOH﻿, तो QUEEN﻿ = ?

17. If HARD﻿ = IBSE﻿, then SOFT﻿ = ? / यदि HARD﻿ = IBSE﻿, तो SOFT﻿ = ?

18. If CAT﻿ = DBU﻿, what will DOG﻿ = ? / यदि CAT﻿ = DBU﻿, तो DOG﻿ = ?

19. In a code language, EARTH﻿ = FBSUI﻿, then WORLD﻿ = ? / यदि EARTH﻿ = FBSUI﻿, तो WORLD﻿ = ?

20. If BRAIN﻿ = CSBJO﻿, then MIND﻿ = ? / यदि BRAIN﻿ = CSBJO﻿, तो MIND﻿ = ?

21. If DOOR﻿ is coded as EPPQ﻿, then WALL﻿ = ? / यदि DOOR﻿ को EPPQ﻿ लिखा जाता है, तो WALL﻿ = ?

22. If NOTE﻿ = OPUF﻿, then SONG﻿ = ? / यदि NOTE﻿ = OPUF﻿, तो SONG﻿ = ?

23. In a code, HOUSE﻿ = IPVTF﻿. How is ROOM﻿ coded? / यदि HOUSE﻿ = IPVTF﻿, तो ROOM﻿ को कैसे लिखा जाएगा?

24. If SCHOOL﻿ = TIDPMM﻿, then COLLEGE﻿ = ? / यदि SCHOOL﻿ = TIDPMM﻿, तो COLLEGE﻿ = ?

25. If FILE﻿ = GJMF﻿, then DATA﻿ = ? / यदि FILE﻿ = GJMF﻿, तो DATA﻿ = ?

26. If CUP﻿ = DVQ﻿, then TEA﻿ = ? / यदि CUP﻿ = DVQ﻿, तो TEA﻿ = ?

27. If DISH﻿ = EJTI﻿, then RICE﻿ = ? / यदि DISH﻿ = EJTI﻿, तो RICE﻿ = ?

28. If HELLO﻿ = IFMMP﻿, then WORLD﻿ = ? / यदि HELLO﻿ = IFMMP﻿, तो WORLD﻿ = ?

29. In a code, BAT﻿ = CBU﻿, then RAT﻿ = ? / यदि BAT﻿ = CBU﻿, तो RAT﻿ = ?

30. If LOOK﻿ = MPPL﻿, then BOOK﻿ = ? / यदि LOOK﻿ = MPPL﻿, तो BOOK﻿ = ?

31. If RAIN﻿ = QZHM﻿, then WATER﻿ = ? / यदि RAIN﻿ = QZHM﻿, तो WATER﻿ = ?

32. If PINE﻿ = RKPJ﻿, then TREE﻿ = ? / यदि PINE﻿ = RKPJ﻿, तो TREE﻿ = ?

33. If SMART﻿ = RNZQS﻿, then BRAIN﻿ = ? / यदि SMART﻿ = RNZQS﻿, तो BRAIN﻿ = ?

34. If CODE﻿ = XLMW﻿, then DATA﻿ = ? / यदि CODE﻿ = XLMW﻿, तो DATA﻿ = ?

35. In a code, MIND﻿ = NJME﻿, then SOUL﻿ = ? / यदि MIND﻿ = NJME﻿, तो SOUL﻿ = ?

36. If WATER﻿ is coded as XBUSF﻿, then JUG﻿ = ? / यदि WATER﻿ = XBUSF﻿, तो JUG﻿ = ?

37. If BLACK﻿ = YIZXP﻿, then WHITE﻿ = ? / यदि BLACK﻿ = YIZXP﻿, तो WHITE﻿ = ?

38. If BIRD﻿ = YRIW﻿, then FISH﻿ = ? / यदि BIRD﻿ = YRIW﻿, तो FISH﻿ = ?

39. If TABLE﻿ = GYOVB﻿, how is CHAIR﻿ written? / यदि TABLE﻿ = GYOVB﻿, तो CHAIR﻿ को कैसे लिखा जाएगा?

40. If VAN﻿ = EZM﻿, then CAR﻿ = ? / यदि VAN﻿ = EZM﻿, तो CAR﻿ = ?

41. If HELLO﻿ = JGNNQ﻿, then GOOD﻿ = ? / यदि HELLO﻿ = JGNNQ﻿, तो GOOD﻿ = ?

42. In some code, LOVE﻿ = MPWF﻿, how is HATE﻿ coded? / किसी कोड में LOVE﻿ = MPWF﻿, तो HATE﻿ को कैसे लिखा जाएगा?

43. If EAR﻿ = HZG﻿, then TEAR﻿ = ? / यदि EAR﻿ = HZG﻿, तो TEAR﻿ = ?

44. If WORD﻿ = DLIW﻿, then KING﻿ = ? / यदि WORD﻿ = DLIW﻿, तो KING﻿ = ?

45. If LION﻿ = OKRP﻿, then TIGER﻿ = ? / यदि LION﻿ = OKRP﻿, तो TIGER﻿ = ?

46. If OWL﻿ = LDP﻿, then CROW﻿ = ? / यदि OWL﻿ = LDP﻿, तो CROW﻿ = ?

47. If NEPAL﻿ = ODMZM﻿, then INDIA﻿ = ? / यदि NEPAL﻿ = ODMZM﻿, तो INDIA﻿ = ?

48. In a code, KITE﻿ = MTVG﻿, then BIRD﻿ = ? / यदि KITE﻿ = MTVG﻿, तो BIRD﻿ = ?

49. If FAST﻿ = GCUV﻿, then SLOW﻿ = ? / यदि FAST﻿ = GCUV﻿, तो SLOW﻿ = ?

50. ‘FISH’﻿=‘27’﻿, ‘BIRD’﻿=‘29’﻿, find ‘ANIMAL’﻿. / ‘FISH’﻿=‘27’﻿, ‘BIRD’﻿=‘29’﻿, ‘ANIMAL’﻿ ज्ञात करें।

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